Separable tooth tip armature construction
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United States of America Patent
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Jul 22, 2014
Grant Date -
Dec 22, 2011
app pub date -
Jun 10, 2011
filing date -
Jun 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
In a process of producing a stator forming part of a rotary motor arrangement, a multiplicity of laminations are joined together to produce a first stack of laminations defining teeth, slots between adjacent teeth, and a yoke section connecting the teeth together. Coil elements are then mounted on the teeth so that the coil elements are disposed in the slots between the adjacent teeth, and a second stack of laminations is fitted onto an inner diameter of the first stack of laminations and fixed in place to function as tooth tips. At least part of the second lamination stack is then bored out or otherwise removed to dispose of all but a thin layer of the second stack of laminations bridging adjacent teeth defined by the first stack of laminations. A rotary motor stator produced by such a process is also described.
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